Picking entity / blocks

[GengisKhan]

Hello, for a mod I need make a picker to select a block or an entity with the mouse in Minecraft, something like an OpenGL picker

 

How can i do that ?

 

Thank you

Edited November 18, 2019 by GengisKhan

[larsgerrits]

What do you define as a  "picker"? The only thing I can think of is that you want something like the 'Pick Block' control.

[GengisKhan]

In any RTS game, you can select 3D object with the mouse, that's what i call picking.

Another example is engine like Blender or Maya, where you can select units with "picking " in the editor.

 

I would like to have a invisible GUI in game, to be able to control the mouse (easy part). Then, when the player click on an unit or a block, I would like to know which unit or block he has clicked on.

[SerpentDagger]

2 hours ago, GengisKhan said:

when the player click on an unit or a block, I would like to know which unit or block he has clicked on.

 

You can use RayTraceResult to store the result of ray-casting on a World object.

(That's how it works in 1.12, at least. Not sure if it's different in 1.14, or if you're even using 1.14)

 

Edit: Whoops, my bad, it's easier to use Entity#rayTrace() in your situation.

Edited November 19, 2019 by SerpentDagger